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HTML
<div id="carousel">
<div id="slide-container">
<div class="slide" data-slideIndex="0">
<div class="slide-banner">Tour the Empire State Building! <a href="">Buy tickets now.</a></div>
<img width="1200" height="600" src="./newyork.jpg">
</div>
<div class="slide" data-slideIndex="1">
<div class="slide-banner">Ride the Shinkansen! <a href="">Buy tickets now.</a></div>
<img width="1200" height="600" src="./tokyo.jpg">
</div>
<div class="slide" data-slideIndex="2">
<div class="slide-banner">Discover relaxation! <a href="">Buy tickets now.</a></div>
<img width="1200" height="600" src="./beach.jpg">
</div>
<div class="slide" data-slideIndex="3">
<div class="slide-banner">See penguins! <a href="">Buy tickets now.</a></div>
<img width="1200" height="600" src="./penguins.jpg">
</div>
<div class="slide" data-slideIndex="4">
<div class="slide-banner">Take a ride on the wheel! <a href="">Buy tickets now.</a></div>
<img width="1200" height="600" src="./wheel.jpg">
</div>
</div>
<div id="back-button" class="arrow back">←</div>
<div id="forward-button" class="arrow forward">→</div>
<div class="slide-indicators">
<div class="slide-indicator active"></div>
<div class="slide-indicator"></div>
<div class="slide-indicator"></div>
<div class="slide-indicator"></div>
<div class="slide-indicator"></div>
</div>
</div>
CSS
#carousel {
max-width: 1200px;
display: flex;
flex-direction: column;
margin: 0 auto;
position: relative;
}
.slide-indicators {
display: flex;
justify-content: center;
}
.slide-indicator {
height: 44px;
width: 50px;
display: flex;
justify-items: center;
cursor: pointer;
}
.slide-indicator:after {
content: "";
background-color: #878787;
height: 10px;
margin-top: 10px;
width: 40px;
}
.slide-indicator.active:after,
.slide-indicator:hover:after {
background-color: #000;
}
.slide-banner {
background-color: #000;
color: #fff;
position: absolute;
left: 0;
bottom: 20px;
padding: 15px;
font-size: 2.5vw;
}
.slide-banner a {
color: #fff;
}
#slide-container {
scroll-snap-type: x mandatory;
overflow-x: scroll;
overflow-y: hidden;
display: flex;
align-items: center;
height: 100%;
gap: 10px;
-webkit-overflow-scrolling: touch;
scroll-behavior: smooth;
}
.slide {
scroll-snap-align: center;
position: relative;
min-width: 100%;
padding-top: 50%;
}
.slide img {
height: 100%;
width: auto;
position: absolute;
top: 0;
left: 0;
}
.arrow {
color: #fff;
height: 20px;
width: 20px;
background-color: #000;
position: absolute;
padding: 10px;
opacity: .3;
cursor: pointer;
}
.arrow.back {
left: 10px;
top: 10px;
}
.arrow.forward {
right: 10px;
top: 10px;
}
.arrow:hover {
opacity: 1;
}
JS
function autoplayCarousel() {
const carouselEl = document.getElementById("carousel");
const slideContainerEl = carouselEl.querySelector("#slide-container");
const slideEl = carouselEl.querySelector(".slide");
let slideWidth = slideEl.offsetWidth;
// Add click handlers
document.querySelector("#back-button")
.addEventListener("click", () => navigate("backward"));
document.querySelector("#forward-button")
.addEventListener("click", () => navigate("forward"));
document.querySelectorAll(".slide-indicator")
.forEach((dot, index) => {
dot.addEventListener("click", () => navigate(index));
dot.addEventListener("mouseenter", () => clearInterval(autoplay));
});
// Add keyboard handlers
document.addEventListener('keydown', (e) => {
if (e.code === 'ArrowLeft') {
clearInterval(autoplay);
navigate("backward");
} else if (e.code === 'ArrowRight') {
clearInterval(autoplay);
navigate("forward");
}
});
// Add resize handler
window.addEventListener('resize', () => {
slideWidth = slideEl.offsetWidth;
});
// Autoplay
const autoplay = setInterval(() => navigate("forward"), 3000);
slideContainerEl.addEventListener("mouseenter", () => clearInterval(autoplay));
// Slide transition
const getNewScrollPosition = (arg) => {
const gap = 10;
const maxScrollLeft = slideContainerEl.scrollWidth - slideWidth;
if (arg === "forward") {
const x = slideContainerEl.scrollLeft + slideWidth + gap;
return x <= maxScrollLeft ? x : 0;
} else if (arg === "backward") {
const x = slideContainerEl.scrollLeft - slideWidth - gap;
return x >= 0 ? x : maxScrollLeft;
} else if (typeof arg === "number") {
const x = arg * (slideWidth + gap);
return x;
}
}
const navigate = (arg) => {
slideContainerEl.scrollLeft = getNewScrollPosition(arg);
}
// Slide indicators
const slideObserver = new IntersectionObserver((entries, observer) => {
entries.forEach(entry => {
if (entry.isIntersecting) {
const slideIndex = entry.target.dataset.slideindex;
carouselEl.querySelector('.slide-indicator.active').classList.remove('active');
carouselEl.querySelectorAll('.slide-indicator')[slideIndex].classList.add('active');
}
});
}, { root: slideContainerEl, threshold: .1 });
document.querySelectorAll('.slide').forEach((slide) => {
slideObserver.observe(slide);
});
}
autoplayCarousel();
Salvo quando diversamente specificato, i contenuti di questa pagina sono concessi in base alla licenza Creative Commons Attribution 4.0, mentre gli esempi di codice sono concessi in base alla licenza Apache 2.0. Per ulteriori dettagli, consulta le norme del sito di Google Developers. Java è un marchio registrato di Oracle e/o delle sue consociate.
Ultimo aggiornamento 2024-01-11 UTC.
[{
"type": "thumb-down",
"id": "missingTheInformationINeed",
"label":"Mancano le informazioni di cui ho bisogno"
},{
"type": "thumb-down",
"id": "tooComplicatedTooManySteps",
"label":"Troppo complicato/troppi passaggi"
},{
"type": "thumb-down",
"id": "outOfDate",
"label":"Obsoleti"
},{
"type": "thumb-down",
"id": "translationIssue",
"label":"Problema di traduzione"
},{
"type": "thumb-down",
"id": "samplesCodeIssue",
"label":"Problema relativo a esempi/codice"
},{
"type": "thumb-down",
"id": "otherDown",
"label":"Altra"
}]
[{
"type": "thumb-up",
"id": "easyToUnderstand",
"label":"Facile da capire"
},{
"type": "thumb-up",
"id": "solvedMyProblem",
"label":"Il problema è stato risolto"
},{
"type": "thumb-up",
"id": "otherUp",
"label":"Altra"
}]